Aprilaire Humidifier Maintenance Kit 4792 includes everything you need to keep your Aprilaire Humidifier 500, 500A and 500M operating like new. Ensure peak performance for years to come.
What's Included:
10 Water Panel
4640 Scale Control Insert
4223 Drain Spud
4231 Yellow Orifice
4335 Water Feed Tube
4331 Distribution Tray
4004 In-Line Strainer
User Manual
